Hast thou not known? hast thou not heard, [that] the everlasting God, the Lord, the Creator of the ends of the earth, fainteth not, neither is weary? [there is] no searching of his understanding. He giveth power to the faint; and to them that have no might he increaseth strength. Even the youths shall faint and be weary, and the young men shall utterly fall: But they that wait upon the LORD shall renew their strength; they shall mount up with wings as eagles; they shall run, and not be weary; and they shall walk, and not faint.